SCIENCE. 



[Vol. XVII. No. 421 



CALENDAR OF SOCIETIES. 

 New York Academy of Sciences. 



Feb. 23. — J. A. Allen, Recent Work in 

 North American Mammalogy. 



Election of Officers. — President, John S. 

 Newberry; first vice-president, Oliver P. 

 Hubbard; second vice-president, J. A. AUen; 

 corresponding secretary, Thomas L. Casey ; 

 recording secretary, H. Carrington Bolton; 

 treasurer, Henry Dudley; librarian, John I. 

 Northrop; councillors, N. L. Britton, Charles 

 F. Cox, A. A. Julien, D. S. Martin, J. K. 

 Rees, J. J. Stevenson; curators, George F. 

 Kunz, John I. Northrop, N. L. Britton, D. S. 

 Martin, H. T. Vulte; and finance committee, 

 John H. Hinton, H. G. Marquand, and O. B. 

 Potter. 



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Wants, 



A ny person seeking a position for ivhick he is qitali- 

 fiedby his scientific attainments, or any person seeking 

 some one to fill a position of tkis character, be it that 

 ofi a teacher ofi science^ chemist, draughtsman, or ivkat 

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WANTED— A position to teach Electrical Engi- 

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WANTED.— A young man in college would like a 

 position during the summer of 1891 in some 

 scientific work, particularly Orinthology, either as 

 an instructor or tutor, or in making collections or 

 accompanying some scientific expedition. Can give 

 good references. Address HUBERT L. CLARK, 

 Amherst, Mass. 



WANTED. — A young man who has been teaching 

 in a first-class High School desires a position 

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 branches. Can give highest references Address H. 

 W. MARTHENS, 6208 Broad St., Pittsburgh, Pa. 



WANTED.— A situation in a scientific house by a 

 graduate of the scientific department of the 

 Jersey City High School as Geologist, Mineralogist 

 or as assistant teacher in Physics or assistant to a 

 chemist. Best of references. E. W. PERRY, 582 

 Third Street, Jersey City, N. J. 



WANTED.— By a medical student of three 

 courses, a position on some war or mercan- 

 tile vessel sailing between America and some for- 

 eign country, as Clerk, Assistant Physician or Drug- 

 gist, or any respectable occupation. Content with 

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TNFORMATION WANTED.— Clarence W. Bowen, 

 X Secretary of the Committee on the Centennial 

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Exchanges. 



[Freeof charge to all, if of satisfactory character. 

 Address N. D. C. Hodges, 47 Lafayette Place, New 

 York.l 



Will exchange a new Thomson reflecting astatic gal- 

 vanometer, about 6,000 ohms, made by Clark, Muir- 

 head & Co , London, and costing £30, with i-g, 1-99, 

 1-999, shunts, lampand |scale, fnr a Weston voltmeter 

 and ammeter, or large Wheatstone bridge, dial paitern, 

 or a portable testing outfit. Address G. A., Science 

 Office, 47 Lafayette Place 



For exchange — Fossil li 

 South Table Mountain, r 

 sils, historical relics, or n 

 vin. State School of Mini 



For Sale or Exchange — All forms 

 dian birds, mammals, insects, reptili 

 Ural history specimens. First class sped 

 plied. G. E. Atkinson, 639 Spadina Ave., Toronto, C; 



i would like to exchange first six vols. Roscoe and 

 Schorleminer's Chemistry, and Vols. II. and HI. of " Ed- 

 ucation " for American Naturalist for 1889 and 1890, or 

 works on Zoology. C. Dwight Marsh, Ripon College, 

 Ripon, Wis. 



I have a good supply of Eastern Coleoptera which I 

 wish to exchange for species not in my collection. Mel- 

 andryidae and Oedemeridae especially desired. Joe C. 

 Thompson, Rosebank P. O., Box 73, S. 1. 



I wish to exchange Eastern Lepidoptera for those that 

 I do not have, particularly those foand in the South. 

 Jos. F. Crandall, Honesdale. Wayne Co., Pa. 



To exchange, 1890 Seeger and Guernsey Cyclopedia, 

 containing a complete list of the manufactures and pro- 

 ducts of the U. S., and address of first hands, cost $6. 

 David R. Lewis, Saybrook, 111. 



Add 

 ;, New Yorl 

 saves from the Laramie beds of 

 tear Golden, Col., for other fos- 

 nnerals. Address John B. Gar- 

 ;s, Golden, Col. 



nd species of Cana- 

 , fish or other nat- 

 nly 



A GAIN OF A POUND A DAY IN THE ! 



CASE OF A MAN WHO HAS BECOME "ALL 

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 THAT REMARKABLE FLESH PRODUCER, 



SCOTT'S 



FlWULSiON 



OF PURE COD LIVER OIL WFH 



Hypophosphites of Lime & Soda 



IS NOTHING UNUSUAL. ThIS FEAT 

 HAS BEEN PERFORMED OVER AND OVER 



AGAIN. Palatable as milk. En- 

 dorsed BY Physicians. Sold by all 

 Druggists. Avoid substitutions and 

 imitations. 



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